/**
 * Copyright 2009-2010 by The Regents of the University of California
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * you may obtain a copy of the License from
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package edu.ucr.cs.dblab.acestore.base;

/**
 * @author jarodwen
 * @created Jan 9, 2011
 */
public class ACEPageKey {

	private int fileID, pageID;
	
	public ACEPageKey(int fileID, int pageID){
		this.fileID = fileID;
		this.pageID = pageID;
	}
	
	public int getFileID(){
		return fileID;
	}
	
	public int getPageID(){
		return pageID;
	}
	
	/**
	 * Compare two objects.
	 */
	@Override
	public boolean equals(Object obj){
		if(obj instanceof ACEPageKey){
			ACEPageKey anotherKey = (ACEPageKey)obj;
			if(this.fileID == anotherKey.fileID && this.pageID == anotherKey.pageID)
				return true;
			else
				return false;
		}else{
			return false;
		}
	}
	
	@Override
	public int hashCode(){
		int hash = 1;
		hash = hash * 31 + this.fileID;
		hash = hash * 31 + this.pageID;
		return hash;
	}
}
